We have a Campbell Hausfeld air compressor that we keep in the car next to the spare tire. take up so much space in the car. It makes sense to keep it in the car because you can't always plan to be home when you find out you have an apartment. It is much easier to plug an air compressor into an outlet than into a car's cigarette lighter. Be careful when purchasing a power transformer because not everyone has the power to run an air compressor. It has. I should have used it more but I tested it and it works great.